Major Customer and Geographic Information (Schedule of Revenue by Geographic Region) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 561,400	$ 402,400	$ 2,860,500	$ 1,103,400
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	208,400	181,800	2,067,700	493,600
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		1,500	1,500	1,500
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	100	100	200	300
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	352,900	211,600	791,100	585,800
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 7,400		$ 22,200